albin 30 sailboat

• Types of Sailboats
• Parts of a Sailboat
• Cruising Boats
• Small Sailboats
• Design Basics
• Sailboats under 30'
• Sailboats 30'-35
• Sailboats 35'-40'
• Sailboats 40'-45'
• Sailboats 45'-50'
• Sailboats 50'-55'
• Sailboats over 55'
• Masts & Spars
• Knots, Bends & Hitches
• The 12v Energy Equation
• Electronics & Instrumentation
• Build Your Own Boat
• Buying a Used Boat
• Choosing Accessories
• Living on a Boat
• Cruising Offshore
• Sailing in the Caribbean
• Anchoring Skills
• Sailing Authors & Their Writings
• Mary's Journal
• Nautical Terms
• Cruising Sailboats for Sale
• List your Boat for Sale Here!
• Used Sailing Equipment for Sale
• Sell Your Unwanted Gear
• Sailing eBooks: Download them here!
• Your Sailboats
• Your Sailing Stories
• Your Fishing Stories
• Advertising
• What's New?
• Chartering a Sailboat
• Cruiser Yachts under 30'
• Albin Ballad

The Albin Ballad 30 Sailboat

The Albin Ballad 30, a moderate-to-heavy displacement masthead sloop, was designed by Rolf Magnusson and built in Sweden by Albin Marine.

The Ballad 30 was designed as an International Offshore Rule (IOR) Half Ton class cruiser-racer, which means it was optimized for racing under a handicap system that measured various aspects of the boat's speed potential.

The design is an evolution of the Joker S30 IOR racer. The Ballad 30 was very successful in racing, winning several national and international championships in the 1970s.

Published Specification for the Albin Ballad 30

Underwater Configuration:   Fin with skeg-hung rudder

Hull Material:   GRP (fibreglass)

Length Overall:  29' 11" / 9.12m

Waterline Length:  22' 7" / 6.88m

Beam:  9' 8" / 2.95m

Draft:  5' 1" / 1.55m

Rig Type:  Masthead Sloop

Displacement:  7,276lb / 3,300kg

Designer:  Rolf Magnusson

Builder:  Albin Marine (Sweden)

Year First Built:  1971

Year Last Built:  1982

Number Built:  1500

Owners Association:   UK Ballad Association

Published Design Ratios for the Albin Ballad 30

Sail Area/Displacement Ratio: 16.1

Ballast/Displacement Ratio: 47.0

Displacement/Length Ratio: 282

Comfort Ratio: 22.1

Capsize Screening Formula:   2.0

read more about these Key Performance Indicators...

Summary Analysis of the Design Ratios for the Albin Ballad 30

The Albin Ballad 30 sailboat, based on the published design ratios, would theoretically have the following sailing characteristics:

• Sail Area/Displacement Ratio (16.1) : This ratio falls within the range of 16 to 20, indicating that the Albin Ballad 30 would have reasonably good performance. It should be able to move well in most conditions, but it might not be as high-performing as boats with a ratio above 20.
• Ballast/Displacement Ratio (47.0) : This high ratio suggests that the Albin Ballad 30 is a stiffer, more powerful boat that can stand up well to the wind. However this ratio doesn't account for the location of the ballast. If the ballast is located in a shallow draft keel, the boat will be less stiff than if the ballast were in a bulb at the foot of its keel.
• Displacement/Length Ratio (282) : This ratio falls within the range of 275-350, indicating that the Albin Ballad 30 is a heavy displacement boat. It would require more power to drive the boat to its design hull speed compared to boats with a lower ratio.
• Comfort Ratio (22.1) : This ratio falls within the range of 20 to 30, suggesting that the Albin Ballad 30 would have a motion normally associated with a coastal cruiser. It should provide a reasonable level of comfort for the crew in most conditions, but it might not be as comfortable as boats with a higher ratio in rough seas.
• Capsize Screening Formula (2.0) : This value indicates that the Albin Ballad 30 has blue water capability and if properly equipped is suitable for ocean passages. The lower the value, the better the boat's stability and resistance to capsize.

As for the theoretical nature of these ratios, it's important to remember that they are simplifications and don't capture all aspects of a boat's performance or comfort.

For example, the Ballast/Displacement Ratio doesn't account for the location of the ballast, which can significantly affect a boat's stiffness.

Similarly, Ted Brewer's Comfort Ratio favors heavy displacement, narrow-beamed vessels with long overhangs. As a result, today's lighter-displacement, beamy cruisers with plumb bows won't score well for crew comfort according to this ratio, even though they may have bluewater capability.

These ratios should therefore be used as guides rather than definitive measures of a boat's characteristics.

Other sailboats in the Albin range include:

Dick McClary wrote this article, and used GPT-4, OpenAI’s large-scale language-generation model, as a research assistant to develop source material. The author wrote the final draft in its entirety and believes it to be accurate to the best of his knowledge.

Recent Articles

'Natalya', a Jeanneau Sun Odyssey 54DS for Sale

Mar 17, 24 04:07 PM

'Wahoo', a Hunter Passage 42 for Sale

Mar 17, 24 08:13 AM

Used Sailing Equipment For Sale

Feb 28, 24 05:58 AM

Here's where to:

• Find  Used Sailboats for Sale...
• Find Used Sailing Gear for Sale...
• List your Sailboat for Sale...
• List your Used Sailing Gear...
• Sign-up for our newsletter, 'The Sailboat Cruiser' ...
• Identify this month's Mystery Boat...

Our eBooks...

A few of our Most Popular Pages...

Copyright © 2024  Dick McClary  Sailboat-Cruising.com

Albin Ballad

Sailboat specifications.

• Last update: 28th March 2020

Albin Ballad's main features

Albin ballad's main dimensions, albin ballad's rig and sails, albin ballad's performances, albin ballad's auxiliary engine, albin ballad's accommodations and layout.

Similar sailboats that may interest you:

Ballad 30 albin

The ballad 30 albin is a 29.92ft masthead sloop designed by rolf magnusson and built in fiberglass by albin marine between 1971 and 1982., 1500 units have been built..

The Ballad 30 albin is a moderate weight sailboat which is a reasonably good performer. It is very stable / stiff and has a low righting capability if capsized. It is best suited as a coastal cruiser. The fuel capacity is originally very small. There is a very short water supply range.

Ballad 30 albin for sale elsewhere on the web:

Main features

Login or register to personnalize this screen.

You will be able to pin external links of your choice.

See how Sailboatlab works in video

We help you build your own hydraulic steering system - Lecomble & Schmitt

Accommodations

Builder data, other photos, modal title.

The content of your modal.

Personalize your sailboat data sheet

• Yachting Monthly
• Digital edition

Albin Ballad

• September 23, 2009

The Albin Ballad by Rolf Magnusson

Product Overview

Manufacturer:, price as reviewed:.

Of the myriad cruiser-racers that appeared in the seventies, only a handful stand out as equally successful in both camps and among the best of them was the Albin Ballad by Rolf Magnusson. Launched in 1972 as a half-tonner, she has a distinctive knuckle just above the waterline amidships. Her fin keel and semi-elliptical rudder were advanced for the times, as was her masthead rig with its tiny mainsail and huge, overlapping genoa which needs powerful winches or strapping crew to manage. Roller-reefing is essential. The hull is slim, well balanced and easily driven and she has a surprisingly easy motion in a seaway. On the other hand, she can be wet upwind in a chop and a bit of a handful downwind if overcanvassed. She has a long, comfortable and well-protected cockpit and tiller steering. She has six berths in two cabins, including two rather awkward pilot berths. By modern standards the galley is small but adequate, as is the heads. The GRP inner moulding makes the décor rather stark, but practical and robust. The boats were strongly built by Albin Marine in Sweden and have lasted well in general. However, most have had a hard racing background and may still be showing the bruises. Deck gear and spars, if original, should be treated with caution. The design is still sought after as a sporty family cruiser and cost-effective club racer so prices, though not as firm as they once were, are on the high side.

• Forum Listing
• Marketplace
• Advanced Search
• About The Boat
• Boat Review Forum
• SailNet is a forum community dedicated to Sailing enthusiasts. Come join the discussion about sailing, modifications, classifieds, troubleshooting, repairs, reviews, maintenance, and more!

Albin Ballad 30

• Add to quote

I''m seriously considering the purchase of a 1974 Albin Ballad I''ve discovered for sale close to home. I''m looking for a good boat for eventual budget-oriented long distance cruising, and the Ballad has an apparantly good reputation as a blue water boat. The price is just right. The sales will need replacing before I venture too far, but I have a few more years of building a kitty anyway. I''m assuming the standing rigging might also need replacing, for prudence'' sake if nothing else. Considering these things, does any one know what a good price might be for this vessel? And if anyone has a Ballad of this vintage, I would appreciate any reviews or stroies you''d care to share. Thanks!  

Hello, Dodger... We sailed a Ballad ''little sister'', a ''75 27'' Albin Vega out of Santa Barbara, CA - meaning ''offshore'' the minute you left the harbor entrance - for two years, and were then run down at sea aboard her by drunk abalone fishermen (a story in itself). Our sailing & ''destruction'' experiences built a huge degree of respect on our part for the way the Swedish company built their boats (as well as the designs themselves) before abandoning Sweden for Taiwan. We lusted over a Ballad for some time, as did other Vega owners we knew, and I suspect the basics of the boat you''ve found - assuming decent maintenance like keeping her wateright - are still well above the Catalina/Hunter standard we see today. One point to offer some perspective on these designs: in the 70''s, Hallberg-Rassey was building its first generation of boats, which were then routinely sailed around the world. (Mind you, we''re talking about what today we refer to as "production boats" sold to a competitive price in the US marketplace). Meanwhile, Albin Vegas & Ballads were being routinely sailed across the Atlantic or raced in the North & Baltic Seas by both experienced & inexperienced crews without a hiccup. Back then, Hiscocks'' books were the only ''real'' cruising bible and people took such performance & endurance far more for granted than today, now that the bookkeepers have found the ''value'' of iron keels, molded liners, thin prop shafts and 304 stainless deck hardware. I''m not sure you can expect any truly helpful info on the pricing of the Ballad you''ve found. Oh, opinions are always eagerly offered, and you can locate anecdotal info from a few souls who paid ''$X'' for their Albins, but that doesn''t fair much of a curve for the next boat. Instead, I''d suggest you use the 30'' used boat market as your baseline - what else do you believe was essentially soundly built in that size/displacement range, was intended for offshore racing & sailing, and at the level the boat has been maintained and hopefully improved? And what price, comparably equipped, are those competing boats going for? The Ballad will be more functionally arranged, better engineered, less roomy and probably wetter (due to a fine entry) than e.g. an Islander 30 from SoCal or a Morgan 30 from Florida. But with these older boats, it''s more a matter of the overall quality of the construction, what she was designed to do, and what level of fit-out & condition is she now in. Your ''critical issues'' list should include engine, rig and the structural soundness of the interior components & keel/rudder/deck, IMO. Also, double-check the mast step; Albins could have a problem there if taken to weather over many miles offshore. Sorry to editorialize, but you can see I have a high regard for that yard of that era. One of the true disappointments - one way the sailing marketplace fails us today - is the lack of smaller but offshore-capable designs at affordable prices. If it was possible in the late 70''s to build a ''basic systems'' boat that could cross an ocean repeatedly, why not now given our alleged advancements in technology? Jack  

Jack, Thanks very much for your reply. I wasn''t honestly expecting one so quickly, considering the fact that Albins and more particularely the Ballads, aren''t very well known in this hemisphere. As you noted, the shipyard of that era has an excellent reputation for building strong, capable boats. I''ve been searching for quite awhile for the right vessel with the right "compromise" of design features, and the ballad certainly has them. Combined with it''s reputation and the considering the purpose it was built for (as you say, cruisning/racing the North Sea), I was immediatly pulled to this boat when I saw her listing. The boat doesn''t appear to have been upgraded all that much since 1974. But by this I mean mostly creature comforts and instrumentation, and it''s a minor factor in my mulling. The engine I believe is still the original Volvo 10 hp. The deck has had some delamination problems, but from what research I''ve done, thermal delamination (no water in the core) is a somewhat common problem for older Ballads, and easily repaired. A good survey should tell for sure. As I said in my earlier post, the sails will need replacing and the standing rigging most likely as well, both things I would do anyway before setting off for Tahiti. The asking price is around $25,000 Canadian, and she''s been a Great Lakes boat for the last so many years of her life (possibly most of her life, I''m not sure yet). The broker tells me the sails definitley need "servicing" and the deck may need additional work. I think this will bring down the price even more. If the standing rigging is old (original??) then even moreso. With regards to your comments about modern production boats and thier lack of deep water/big wind abilities, I read an interesting article the other day on just this subject. It seems it''s the average boat-buyer who''s causing this unfortunately, with thier need for a home-away-from home boat with more interior space and accomodations for entertaining on the dock on a Saturday night. This means a wider beam, longer cockpits, higher freeboard, taller coach roof, etc. All things that a make a design less sea-worthy. What the market demands now are coastal cruisers, and that''s what the majority of manufacturers are building. Be interested to hear how you lost your Vega. Sounds like an interesting yarn! And thanks again for your reply. Patrick  

Dodger: If you''d like to exchange further info on this boat, probably not one most Sailnet readers care about, please feel free to contact me at [email protected], which I''ll have access to for another week or so before returning to Trinidad. The ''thermal delamination'' comment was interesting since I do not believe Albin used balsa core in any of its boats; I think you''ll find the deck is a grp/closed cell foam/grp laminate, much like all the Hallberg-Rasseys of that era. I mention this because digging out rotted core or removing it by cutting out the lower grp laminate would not be necessary, in this case. Instead, it sounds to me more like a drying & pumping (with epoxy) operation. So somehow, try to determine core content (e.g. by pulling a fastener during the survey). A couple of other comments: 1. You are looking at an old(er) boat that essentially needs to be resurrected big-time in order to make such offshore passages. It sounds like you know this already, but a new/fuller suit of sails, a vane (& maybe cockpit autopilot), new rigging, rebuilt or replaced diesel (think about getting parts for that old Volvo vs. having a new Yanmar...), increased water capacity and/or a watermaker, upgraded electrics & electronics, and no doubt other things are all ''musts'' on a trans-Pacific voyage IMO. And that all adds up, even if the basic design is appropriate and the corpus (hull/deck/rudder) are well-designed and in good shape. Also consider that she will be a wet boat, designed to punch thru steep seas & tidal chop for racing purposes (see...we need to add fresh canvas to the list!), and that her carrying capacity is limited by her design. I''m not trying to rain on any parades here, but want to provide a fair context in which to discuss the boat. 2. Offsetting all the above is the fact that many of these upgrades - even on ''non-condo'' cruising boats - will be required for any vessel with such plans. That''s why - from an economic perspective, at least - your best bet IMO is to find a recently cruised, seaworthy boat that will cost twice what you end up paying for the base Ballad (assuming a price reduction) but which will cost you very little thereafter. Moreover, many of the ''puzzles'' presented to a new owner setting up a small boat for long-distance cruising will have previously been well-solved on a properly fitted out boat. Again for balance, I should also add that new gear on your old boat, which you install, brings owner knowledge, the comfort that things were done right, and equipments'' full lifespan along with it - things you don''t necessarily get even on someone else''s nifty cruiser. 3. Have you read John Neal''s _Log of the Mahina_? I think you''d find it valuable reading, for two reasons: the main appendix gives a thorough description of how he prep''d his Vega to sail from Seattle to the South Pacific and back (and afterall, the Vega isn''t that much different) AND it''s a tale that would resonate with your stated plans. I''ll bet you can still find a copy at www.mahina.com (or maybe www.mahinaservices.com, or something similar). It''s dated, but then so is this Ballad you''re looking at. 4. Don''t overlook Latitude 38''s classifieds every month. It''s available on-line at www.latitude38.com or free by picking up a copy at West Marine, if you have one nearby. Many seasoned cruising boats are advertised there, and what better place to a Pacific passage but in the San Francisco-San Diego area! Good luck on the pondering! Jack  

TSOJOURNER said: I''m seriously considering the purchase of a 1974 Albin Ballad I''ve discovered for sale close to home. I''m looking for a good boat for eventual budget-oriented long distance cruising, and the Ballad has an apparantly good reputation as a blue water boat. The price is just right. The sales will need replacing before I venture too far, but I have a few more years of building a kitty anyway. I''m assuming the standing rigging might also need replacing, for prudence'' sake if nothing else. Considering these things, does any one know what a good price might be for this vessel? And if anyone has a Ballad of this vintage, I would appreciate any reviews or stroies you''d care to share. Thanks! Click to expand...

Not too many posters will keep watching threads after ten plus years. Click on their site name and then click on Start Coversation. This relays your direct message to their email address, and perhaps it's still active, years later.  

• ?            
• 173.8K members

Top Contributors this Month

Albin Scampi 30 Boat for Sale

• accommodation
• mechanical and rigging
• Manufacturer: Albin
• Location: Lymington
• LOA: 29'5" (8.96m)
• Beam: 9' 11'' (3.03m)
• Draft: 1.58
• Keel: Fin Keel
• ID no.: 04473
• Watertank Size: 70 Litres
• Engine Make: Volvo Penta MD2020
• Horsepower: 18hp
• Drive Type: Saildrive
• Fuel Type: Diesel
• Fuel Tank Size: 36 Litres

Broker Remarks

The Scampi 30 is one of the classic Half tonner designs. Over 750 were built in total and they have won a great reputation as race winners and for being excellently well built,  easily sailed, and well behaved fast cruisers. The Scampi 30 is roomy, has a deep cockpit and is stiff with good stability Minim 3 has a top race pedigree having great results at club racing and in The Round the Island Race. She has been very well looked after over 30 years of ownership by her current owner.  This Scampi 30 is very neat both her exterior and interior are very clean and. She has been re-engined and has had all her lines led aft.  She has a full suite of sails in overall good condition. She is a classic cruiser-racer that could easily bring home some silverware for her new owner or would make a safe comfortable cruiser for someone who really likes to sail. 

Accommodation

The Alvin Scampi can sleep up to 7, forward is a twin berth cabin. The saloon has two main berth settees with two pipe cots above. There is a quarter berth on the aft port side. She has a sea toilet forward as well as a full-sized hanging locker. The galley has an oven, grill with two burners, cold box and dry storage. Aft port side is a large quarter berth.

Mechanical and Rigging

Volvo MD 2020 18hp  (2001) Twin prop Fin keel encapsulated Seldon mast  with twin spreads Kemp boom 1994 Mainsheet traveller Twin spinnaker poles 1x Jockey pole Stack pack Sanders  2007 Furling -Rotostay 4   Sanders 2007 Dacron genoa 135% Sanders 2007  reasonable condition Mylar genoa Furling racing No 1 150% Sanders 2013  good condition Mylar genoa 120% Sanders 2019 as new Mylar Gib  110 %  Sanders 2013 very good condition Spare Mylar Genoa Sanders 2006 Mainsail 2013 Sanders Dacron full Dracon 2015 Butler Verner Spinnaker 1974 usable Spinnaher Sanders 2005 fair condition Stainless steel standing rigging 2005 2 x Twin speed Lewmar 40 winches Two spinnaker winches Two winches for lines led aft Two mast winches All lines led aft Plough anchor 9m chain 20m rope Transom stainless steel folding bathing ladder Sprayhood good condition Warps and fenders 2016 Top sides and decks painted using international paint 2 pack Epoxy system with Kiwi grip anti-slip paint. New electrics  

Standard Horizon  DSC VHF Aqua meter steering compass new 2015 Echo Pilot depth sounder New 2018 Raymarine i50 Speed display Wind speed and direction instrument Autohelm 1000 Deck level navigation lights Masthead navigation lights Steaming lights Oven, grill with two burners Stainless steel sink Folding saloon table

Contact NYB Lymington

• Address: Network Yacht Brokers Lymington Howard and Carol Ross Marine House, Quay Road, Lymington Hampshire S041 3AT
• Telephone: [+44] [0] 1590 671 381 --> [+44] [0] 1590 671 381
• Email: [email protected]
• Link to full office details

Disclaimer : Breeze Sports Ltd t/a Network Yacht Brokers Lymington offers the details of this vessel for sale but cannot guarantee or warrant the accuracy of the information contained in the specification or warrant the condition of the vessel or equipment. A buyer should instruct his agents, or surveyors, to investigate such details as the buyer desires validated. This vessel is offered for sale subject to no prior sale, price change, or withdrawal without notice.

Enquire About This Albin Scampi 30

Your Name (required)

Your Email (required)

Telephone (required)

Message (required)

• Croatia North
• Milford Haven

• Sell My Boat
• NYB Group Offices
• Become A Yacht Broker
• Manufacturers
• Privacy Policy

© 2004-24 Network Yacht Brokers

Great choice! Your favorites are temporarily saved for this session. Sign in to save them permanently, access them on any device, and receive relevant alerts.

• Sailboat Guide

1979 Albin Scampi 30-4

• Description

Seller's Description

The Scampi 30-4 Albin is successful and well-tried half tonner. She is a fast boat with an attractive accommodation layout making her a well-loved boat. With good upgrades and an excellent track record of proper maintenance, this vessel is perfect for beginners and veterans alike. Well suited for a couple or single-handing, this boat is turn-key and ready for adventure. We are happy to help deliver the boat to you if it helps.

The Boat Designed by Peter Norlin Builder: Albin Marine (SWE) model:1979 Scampi 30-4 Marine Sailboat (GRP), moulded fiberglass hull.

Marine Surveys -2011,2018

Electrical/Electronics -Hubbell 30 Amp/ 125v shore power, including 45ft cable. -West Marine Sea Volt 12v Battery (house/start) w/charge controller. batteries replaced 2020, also have kill switch and switch for house battery -Solar trickle charge -Inverters 400x, 700w -updated marine electrical wiring in the cabin -GPS/Fishfinder sonar new 2021 -Depth Sounder -propane solenoid valve -12v bilge pump w/float switch. Also has manual backup. - D.C. system, custom fuse panel c/w 6 fuses, 6 toggle switches, A.C. system breaker - Navico model TP100 Autopilot -Yanmar Engine Panel: rpm/tack, hour meter, key switch, stop switch, alarm system

Hull -2018 Paint was ground down to gelcoat, and new primer and paint applied -2021-Replaced deck skid proof paint -2021- all deck and hull solid

Sails/Lines -Rig Type: Masterhead Sloop -Main:2 reef points -Horizon 163% Genoa Spinnaker -2 barlow #16 speed and 2 enkes AR20 winches -3 winch handles -all lines recently washed. -6 sails in total and all in good condition

Galley -3 burner propane with oven -3 Large Icebox. -Propane tanks on deck -20 Gallon fresh water tank (dual foot pump)

Head -Toilet w/manual pump -Y-valve for optional direct overboard, or pump to15 Gallon Black water tank.

Equipment: Sleeping Arrangements -V-Birth 2 adults -Port pullout 2 adults -Starboard seat 1 adult or child

Engine 2007 model 2YM15 Yanmar diesel with 9.4KW @3489 R.P.M, 10.3 KW@3600 R.P.M -Sundstrand 15 series Hydrostatic Drive -Key start -low hours approx. 300 -serviced Spring 2021, new impeller, fluids and belts/filters -super clean-fresh water flushed after every use -2 Cylinder, 14 mhp -Welded mild steel 15 Gallon fuel tank.

Anchors x2 -Main locker has a Delta w/30 ft of chain, and 170 ft of rope -Danforth w/ galvanised steel chain @ 50ft of rope stored in wet locker

Tender can be part of the sale if needed price and pictures can be sent separately -10ft zodiac hard floor dinghy with oars/pump/hull cover/inflatable seats -9.5 Evinrude 2-stroke kicker older engine but fully serviced and all new parts/gas tank

Other comments/extras -2 life jackets -2 manual downriggers -tools and accessories for repairs -fending sticks -bumpers -heater -new cushions for the cockpit and cabin -Re-sanded and stained the floor -Gallery cupboard shelves repainted -charts -Safety equipment -swimming ladder -service manuals for stove/engine/auto tiller/ hydronics /pumps

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

• SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
• D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

• D: Displacement of the boat in pounds.
• LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

• D: Displacement of the boat in pounds
• LOA: Length overall in feet
• Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

It is believed about 750 MK IV’s were built. Builders: Alvdalen: to 1974 Shipman: 1975 Albin: 1976-1982

This listing is presented by SailboatListings.com . Visit their website for more information or to contact the seller.

View on SailboatListings.com

Embed this page on your own website by copying and pasting this code.

• About Sailboat Guide

©2024 Sea Time Tech, LLC

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.